Traxxas Velineon VXL-4Ss Brushless Power System, waterproof (includes VXL-4s ESC and 2400Kv, 70mm motor) TRX3440

Overview

The Traxxas Velineon VXL-4Ss Brushless Power System represents the pinnacle of brushless RC technology for enthusiasts who demand extreme performance and precision control. This comprehensive power system combines an innovative VXL-4s Electronic Speed Control with the legendary Velineon 540XL brushless motor, delivering monstrous torque and staggering performance that transforms your RC experience. Whether you're a competitive racer looking for competition-grade electronics or a weekend basher seeking reliable brushless power for your RC car in the UK, this system offers the advanced features and engineering quality that Traxxas is renowned for worldwide.

Designed for 2S to 4S LiPo battery compatibility, the Velineon VXL-4Ss harnesses the full potential of 14.8 volts of power to create a system that excels in both casual and competitive environments. The waterproof construction ensures durability and reliability across diverse weather conditions, making this an ideal upgrade or foundation component for serious RC enthusiasts. From beginners exploring brushless RC technology to experienced competitors fine-tuning their setups, the VXL-4Ss delivers the performance and control you need to dominate the track or terrain.

This system is engineered with innovation at its core, featuring patent-pending High-Resolution Linear Braking technology that has never been offered before by Traxxas. The integration of built-in telemetry, selectable high-voltage BEC options, and intelligent programmable drive profiles makes the VXL-4Ss a professional-grade solution that adapts to your driving style and skill level. When you choose the Traxxas Velineon VXL-4Ss for your brushless RC car setup, you're investing in cutting-edge engineering that delivers consistent, intuitive control and extraordinary performance.

Key Features

• VXL-4s Electronic Speed Control — The innovative ESC at the heart of this system provides advanced motor management and control, featuring real-time telemetry that allows you to monitor your vehicle's performance via the Traxxas Link app, giving you data-driven insights into your RC experience.
• Velineon 540XL Brushless Motor — This long-format brushless motor delivers exceptional torque and reliability without the maintenance requirements of brushed motors, featuring a 2400Kv rating with 4-pole construction and a 5mm output shaft for versatile compatibility with various RC platforms.
• High-Resolution Linear Braking — A patent-pending Traxxas innovation that provides the most intuitive and precise braking ever offered, delivering superior brake modulation with instant response to driver input, allowing you to execute feather-touch speed corrections or full-power late braking with absolute control.
• Selectable High-Voltage BEC — The VXL-4s features a high-voltage BEC with dual settings—a 6.0 volt option for standard servos and a powerful 7.4 volt setting for high-performance servos like the Traxxas 2280, 2255 and 2250, with high-torque brushless servos gaining over 20% more torque at the higher voltage setting.
• 2S to 4S LiPo Compatibility — This power system accepts a wide range of modern LiPo battery configurations, providing flexibility in your power setup whilst maintaining optimal performance with 14.8 volts of maximum power delivery.
• Real-Time Telemetry via Traxxas Link — Monitor vital system parameters during your runs, including motor temperature, voltage, and performance metrics, giving you complete insight into your RC vehicle's behaviour and allowing you to optimise settings on the fly.
• Three Programmable Drive Profiles — Choose between Sport Mode for casual driving, Race Mode for competitive performance, or Training Mode for skill development, with quick and easy profile selection using the Traxxas Link app.
• Large Heat Sink Design — An extra-large heat sink allows the ESC to run cooler for extended run times, with the ability to accept an accessory cooling fan (TRX3340) for even more thermal management capability in extreme conditions.
• Traxxas EZ-Set One-Button Setup — Simplifies the initial configuration process, allowing you to get your brushless RC system up and running quickly without complex programming procedures.
• Integrated Protection Circuitry — The VXL-4s includes comprehensive protection systems to safeguard your investment, preventing damage from low-voltage conditions, thermal overload, and other fault conditions.
• LED Status Lights — Visual feedback indicators keep you informed of system status during operation, helping you identify any issues at a glance.
• Waterproof Construction — The entire power system is engineered to withstand wet conditions, making it suitable for diverse terrain and weather scenarios that UK RC enthusiasts may encounter.
• Low-Maintenance Brushless Design — Unlike traditional brushed motors, the Velineon 540XL requires no brush replacement or commutator maintenance, giving you more time driving and less time servicing your RC vehicle.

Technical Performance

The Traxxas Velineon VXL-4Ss represents a sophisticated convergence of motor and ESC engineering, delivering performance characteristics that satisfy both casual RC car enthusiasts and competitive racers across the UK and beyond. The 2400Kv, 4-pole Velineon 540XL brushless motor with its 5mm output shaft provides a perfect balance between torque delivery and rotational speed, whilst the VXL-4s ESC's advanced electronics ensure smooth power modulation across the entire throttle range. The system's 14.8-volt maximum operating voltage (using 4S LiPo batteries) transforms electrical energy into monstrous torque that accelerates your RC vehicle with authority. The extra-large heat sink integrated into the ESC design dissipates heat efficiently, allowing sustained high-performance running without thermal throttling or performance degradation during extended track sessions. With selectable BEC output of either 6.0 or 7.4 volts, this system accommodates a broad range of servo options, from standard servos to high-performance units, giving you complete flexibility in your RC build configuration. The High-Resolution Linear Braking technology processes driver input at unprecedented speeds, delivering brake response that feels natural and connected rather than digital or delayed. The integration of telemetry via Traxxas Link provides real-time performance data, allowing you to monitor motor temperature and system voltage continuously. Whether running on a race circuit, bash track, or off-road terrain, the waterproof construction ensures reliability in diverse environmental conditions that characterise RC driving in the United Kingdom.

What's in the Box

• VXL-4s Electronic Speed Control (ESC)
• Velineon 540XL Brushless Motor (2400Kv, 4-pole)

What You Need to Complete

• 2S, 3S, or 4S LiPo battery pack (14.8 volts maximum)
• LiPo battery charger
• RC vehicle chassis compatible with 540-size brushless motors
• RC radio system and receiver (if not already equipped)
• Servo for steering control (if not already equipped)
• Cooling fan (optional upgrade: Traxxas TRX3340 accessory cooling fan)

Frequently Asked Questions

• Is the Traxxas Velineon VXL-4Ss suitable for beginners learning about brushless RC cars? — Yes, the VXL-4Ss is excellent for beginners due to its Traxxas EZ-Set one-button setup that simplifies configuration, three programmable drive profiles including Training Mode for skill development, and intuitive High-Resolution Linear Braking that feels natural to newer drivers. However, you will need to understand basic LiPo battery safety and charging procedures, as this system requires modern lithium-polymer batteries rather than older battery types.
• What battery does the Velineon VXL-4Ss require and what runtime can I expect? — This system is compatible with 2S, 3S, and 4S LiPo batteries, with 14.8 volts being the maximum voltage for optimal performance. Runtime depends on your battery capacity—a typical 5000mAh 4S LiPo will provide 15-25 minutes of mixed driving, whilst larger capacity batteries extend runtime further. Always follow proper LiPo charging and storage procedures to maintain battery health and safety.
• How does the High-Resolution Linear Braking compare to conventional ESC braking systems? — The High-Resolution Linear Braking is a patent-pending Traxxas innovation that delivers superior precision compared to conventional systems. The high-resolution communication loop allows instant response to driver input, providing more intuitive modulation whether you're executing feather-touch speed corrections or full-power late braking manoeuvres. This creates a more connected feel between driver and vehicle, essential for competitive racing and precise control in technical sections.
• What is the difference between the 6.0 and 7.4 volt BEC settings, and which should I use? — The 6.0 volt setting is optimised for standard servos and provides adequate power for general RC use. The 7.4 volt high-voltage setting is designed for high-performance servos like the Traxxas 2280, 2255, and 2250, delivering over 20% more torque and faster transit times, making it ideal for competitive racing where servo response speed and strength matter. Selection is quick and easy using the Traxxas Link app, allowing you to experiment and find the optimal setting for your driving style.
• Can I use the Velineon VXL-4Ss in wet conditions or rain? — Yes, the system features waterproof construction throughout, making it suitable for wet weather and damp terrain environments. However, always inspect connectors and seals after wet-weather use and allow components to dry thoroughly before extended storage to maintain long-term reliability.
• Does this power system work with telemetry, and how do I access the data? — The VXL-4s includes built-in telemetry that transmits real-time performance data via the Traxxas Link app on your smartphone or tablet. You can monitor motor temperature, battery voltage, and system status during driving sessions, enabling data-driven optimisation of your RC setup and helping you identify potential issues before they become problems.
• What is included in the Traxxas Velineon VXL-4Ss package? — The package includes the VXL-4s Electronic Speed Control and the Velineon 540XL brushless motor. You will need to source separately a compatible LiPo battery, charger, RC vehicle chassis, radio system with receiver, and servo for steering control if you don't already have these components.
• Can I upgrade cooling for extended high-performance use? — Yes, the large heat sink accepts an accessory cooling fan (Traxxas TRX3340 sold separately), which enhances thermal management during sustained high-speed running or in warm weather conditions, allowing even longer run times without thermal throttling.
• What makes this system suitable for competitive RC racing in the UK? — The combination of High-Resolution Linear Braking for precise control, three programmable drive profiles for different track conditions, real-time telemetry for performance monitoring, and selectable high-voltage BEC for optimised servo performance makes this system competition-grade. The monstrous torque from the 2400Kv motor and the precision control from the VXL-4s ESC give competitive racers the tools needed to execute winning strategies on demanding circuits.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas Velineon VXL-4Ss Brushless Power System, waterproof (includes VXL-4s ESC and 2400Kv, 70mm motor) TRX3440 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.